@oe1cxw This isn't documented on the bitstream page, but: TIL that ice40 will put the SPI flash into deep sleep mode before xferring control to the user program.
Is this user-configurable, b/c it royally broke a design I'm working on.
http://www.clifford.at/icestorm/format.html …
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That's fine and I'll do it. But the config option to prevent deep sleep doesn't appear to be documented on the linked webpage. I don't have IceCube installed to check right now; if it's in fact not documented, I'll install and take a look later.
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The soonest I can have a look at it is next week when I am back in Vienna. (I don't have icecube installed on my laptop.) So if you can look into it yourself, please do.
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